A removable endpiece intended to be attached to a dental ultrasonic surgical system handpiece, and makes contact with a patient while oscillating (vibrating) at high frequency in order to mechanically fragment and cut bone during dental surgery. The device is available in a variety of forms (e.g., flat serrated blade, ball head, nail head, or probe-like) and sizes, and is typically made of metal; it is not intended to be held directly (i.e., does not include a holder). It is used for implant site preparation, dental extraction, distraction, sinus lift, periodontal surgery, cyst removal, extraction of bone block, bone harvesting, osteoplasty, and osteotomy. This is a reusable device.